地球化学分区方法在地球化学勘查中的应用——以胶东半岛乳山寨幅1∶5万水系沉积物测量为例  

Application of Geochemical Zoning Method in Geochemical Exploration——Taking the Measurement of Water System Sediments with the Scale of 1∶50000 in Rushanzhai in Jiaodong Peninsula as an Example

作　　者：魏印涛 何其芬 WEI Yintao;HE Qifen(Shandong Geophysical and Geochemical Exploration Institute,Shandong Engineering Research Center of Underground Resources and Environment High Precision Detection,Shandong Provincial Engineering Research Center for Geological Prospecting,Shandong Ji'nan 250013,China)

机构地区：[1]山东省物化探勘查院,地下资源环境高精度探测山东省工程研究中心,山东省地质勘查工程技术研究中心,山东济南250013

出　　处：《山东国土资源》2024年第12期27-32,共6页Shandong Land and Resources

基　　金：山东省省级地质勘查项目,山东省胶东半岛西南部万第等六幅1∶5万水系沉积物测量,编号:鲁勘字〔2012〕43号。

摘　　要：以胶东半岛乳山寨幅1∶5万水系沉积物测量为例,利用化探数据进行因子分区讨论,得到7个地球化学分区,分别为:Au、As、W地球化学分区,Pb、Ag、Zn地球化学分区,Bi、Sb地球化学分区,Ni、Cu地球化学分区,Sn地球化学分区,Mo地球化学分区,Hg地球化学分区。结合圈定的金综合异常,在Au、As、W地球化学分区内,发现金矿化点2处。结果表明,分区与化探成矿信息的对应关系较好,可以达到缩小找矿靶区,指导找矿工作方向的目的。Taking the drainage sediment survey with the scale of 1∶50000 in Ruzhai area in Jiaodong Peninsula as an example,by using geochemical exploration data,the factor zoning has been discussed.7 geochemical zones have been obtained,they are Au,As,W geochemical zoning;Pb,Ag,Zn geochemical zoning;Bi,Sb geochemical zoning;Ni,Cu geochemical zoning;Sn geochemical zoning;Mo geochemical zoning;Hg geochemical zoning.Combining with the delineated gold synthetical anomaly,two gold mineralization spots have been found in Au,As,W geochemical zone.It is showed that the corresponding relationship between the zoning and geochemical and metallogenic information is good.It can achieve the purpose of reducing the prospecting target area and guiding the prospecting direction.

关 键 词：水系沉积物测量 因子分析 地球化学分区 胶东半岛 

分 类 号：P59[天文地球—地球化学]